Automatic Battery Charger

OWNERS MANUAL

PLEASE SAVE THIS OWNERS MANUAL AND READ BEFORE EACH USE. This manual will explain how to use the charger safely and effectively. Please read and follow these instructions and precautions carefully.

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Model

SP6

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1. IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONS.

1.1 SAVE THESE INSTRUCTIONS – This manual contains important safety and operating instructions.

1.2 Do not expose the charger to rain or snow.1.3 Use of an attachment not recommended or sold by Schumacher® Electric

Corporation may result in a risk of fire, electric shock or injury to persons.1.4 To reduce the risk of damage to electric plug and cord, pull by the plug rather

than the cord when disconnecting charger.1.5 An extension cord should not be used unless absolutely necessary. Use of

improper extension cord could result in a risk of fire and electric shock. If an extension cord must be used, make sure:• The pins on plug of extension cord are the same number, size and shape as

those of plug on charger.• The extension cord is properly wired and in good electrical condition; and• The wire size is large enough for AC ampere rating of charger, as specified in

section 8.1.6 Do not operate charger with damaged cord or plug – replace the cord or plug

immediately.1.7 Do not operate charger if it has received a sharp blow, been dropped, or

otherwise damaged in any way; take it to a qualified serviceman.1.8 Do not disassemble charger; take it to a qualified serviceman when service or repair

is required. Incorrect reassembly may result in a risk of electric shock or fire.1.9 To reduce risk of electric shock, unplug charger from outlet before attempting any

maintenance or cleaning. Turning off controls will not reduce this risk.1.10 WARNING: RISK OF EXPLOSIVE GASES.

a. WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST IMPORTANCE THAT YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU USE THE CHARGER.

b. To reduce risk of battery explosion, follow these instructions and those published by battery manufacturer and manufacturer of any equipment you intend to use in vicinity of battery. Review cautionary markings on these products and on the engine.

1.11 Pursuant to California Proposition 65, this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

1.12 Keep out of reach of children.

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2. PERSONAL SAFETY PRECAUTIONS2.1 Consider having someone close enough by to come to your aid when you work

near a lead-acid battery.2.2 Have plenty of fresh water and soap nearby in case battery acid contacts skin,

clothing, or eyes.2.3 Wear complete eye protection and clothing protection. Avoid touching eyes while

working near battery.2.4 If battery acid contacts skin or clothing, wash immediately with soap and water.

If acid enters eye, immediately flood eye with running cold water for at least 10 minutes and get medical attention immediately.

2.5 NEVER smoke or allow a spark or flame in vicinity of battery or engine.2.6 Be extra cautious, to reduce risk of dropping a metal tool onto battery. It might spark

or short-circuit battery or other electrical part that may cause explosion.2.7 Remove personal metal items such as rings, bracelets, necklaces, and watches

when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn.

2.8 Use the charger for charging only 12V lead-acid or lithium ion LiFePO4 rechargeable batteries with rated capacity of 22-59Ah. It is not intended to supply power to a low voltage electrical system other than in a starter-motor application. Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property.

2.9 NEVER charge a frozen battery.3. PREPARING TO CHARGE3.1 If necessary to remove battery from vehicle to charge, always remove grounded

terminal from battery first. Make sure all accessories in the vehicle are off, so as not to cause an arc.

3.2 Be sure area around battery is well ventilated while battery is being charged.3.3 Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes.3.4 Add distilled water in each cell until battery acid reaches level specified by battery

manufacturer. Do not overfill. For a battery without removable cell caps, such as valve regulated lead acid batteries, carefully follow manufacturer’s recharging instructions.

3.5 Study all battery manufacturer’s specific precautions while charging and recommended rates of charge.

3.6 Determine voltage of battery by referring to car owner’s manual and make sure that output voltage selector switch is set at correct voltage. If charger has adjustable charge rate, charge battery initially at lowest rate.

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4. CHARGER LOCATION4.1 Locate charger as far away from battery as DC cables permit.4.2 Never place charger directly above battery being charged; gases from battery will

corrode and damage charger.4.3 Never allow battery acid to drip on charger when reading electrolyte specific

gravity or filling battery.4.4 Do not operate charger in a closed-in area or restrict ventilation in any way.4.5 Do not set a battery on top of charger.5. DC CONNECTION PRECAUTIONS5.1 Connect and disconnect DC output clips only after setting any charger switches

to “off” position and removing AC cord from electric outlet. Never allow clips to touch each other.

5.2 Attach clips to battery and chassis, as indicated in sections 6 and 7.6. FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE

A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

6.1 Position AC and DC cords to reduce risk of damage by hood, door, or moving engine part.

6.2 Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.6.3 Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has

larger diameter than NEGATIVE (NEG, N,–) post.6.4 Determine which post of battery is grounded (connected) to the chassis. If negative

post is grounded to chassis (as in most vehicles), see (6.5). If positive post is grounded to the chassis, see (6.6).

6.5 For negative-grounded vehicle, connect POSITIVE (RED) clip from battery charger to POSITIVE (POS, P, +) ungrounded post of battery. Connect NEGATIVE (BLACK) clip to vehicle chassis or engine block away from battery. Do not connect clip to carburetor, fuel lines, or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.

6.6 For positive-grounded vehicle, connect NEGATIVE (BLACK) clip from battery charger to NEGATIVE (NEG, N, –) ungrounded post of battery. Connect POSITIVE (RED) clip to vehicle chassis or engine block away from battery. Do not connect clip to carburetor, fuel lines, or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.

6.7 When disconnecting charger, turn switches to off, disconnect AC cord, remove clip from vehicle chassis, and then remove clip from battery terminal.

6.8 See Operating Instructions for length of charge information.

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7. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLEA SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

7.1 Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has a larger diameter than NEGATIVE (NEG, N, –) post.

7.2 Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to NEGATIVE (NEG, N, –) battery post.

7.3 Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) post of battery.7.4 Position yourself and free end of cable as far away from battery as possible –

then connect NEGATIVE (BLACK) charger clip to free end of cable.7.5 Do not face battery when making final connection.7.6 When disconnecting charger, always do so in reverse sequence of connecting

procedure and break first connection while as far away from battery as practical.7.7 A marine (boat) battery must be removed and charged on shore. To charge it on

board requires equipment specially designed for marine use.8. GROUNDING AND AC POWER CORD CONNECTIONS8.1 This battery charger is for use on a nominal 120 volt circuit. The plug must be

plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances. The plug pins must fit the receptacle (outlet). Do not use with an ungrounded system.

8.2 DANGER: Never alter the AC cord or plug provided – if it does not fit the outlet, have a proper grounded outlet installed by a qualified electrician. An improper connection can result in a risk of an electric shock or electrocution. NOTE: Pursuant to Canadian Regulations, use of an adapter plug is not allowed in Canada. Use of an adapter plug in the United States is not recommended and should not be used.

8.3 USING AN EXTENSION CORDThe use of an extension cord is not recommended. If you must use an extension cord, follow these guidelines:• Pins on plug of extension cord must be the same number, size, and shape as

those of plug on charger.• Ensure that the extension cord is properly wired and in good electrical condition.• Wire size must be large enough for the AC ampere rating of charger, as

specified below: Length of cord (feet) 25 50 100 150

AWG* size of cord 18 18 16 14*AWG-American Wire Gauge

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9. ASSEMBLY INSTRUCTIONS9.1 Remove all cord wraps and uncoil the cables prior to using the battery charger.10. FEATURES

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1. Digital display2. Hook attachment3. Battery type button4. Charging status LED indicator5. AC Power cord6. Ring terminal quick-connect7. 12V accessory plug quick-connect8. Battery clamp quick-connect

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11. CONTROL PANELDIGITAL DISPLAYThe digital display indicates the status of the battery and charger. See Display Messages for a complete list of messages.NOTE: During charging, the display will go into sleep mode and will not display any messages. To turn the display back on, press the display button.BATTERY TYPE BUTTONPress button once to select lead-acid; twice for a lithium ion battery.LED INDICATORGREEN LED solid (CHARGING): The charger is connected and charging the battery.GREEN LED pulsing (CHARGED/MAINTAINING): The battery is fully charged and the charger is in maintain mode.GREEN LED flashing: The charge has aborted (see Aborted Charge section).NOTE: See Operating Instructions for a complete description of the charger modes.

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12. OPERATING INSTRUCTIONSIMPORTANT: Do not start the vehicle with the charger connected to the AC outlet, or it may damage the charger and your vehicle.NOTE: This charger is equipped with an auto-start feature. Current will not be supplied to the battery clamps until a battery is properly connected. The clamps will not spark if touched together. CHARGING A BATTERY IN THE VEHICLE1. Turn off all the vehicle’s accessories.2. Keep the hood open.3. Clean the battery terminals.4. Place the charger on a dry, non-flammable surface, or use the convenient hook

attachment to hang the unit safely outside the work area.5. Lay the AC/DC cables away from any fan blades, belts, pulleys and other

moving parts.6. Connect the battery, following the precautions listed in sections 6 and 7.7. Connect the charger to an electrical outlet.8. Select the battery type.9. When the charger starts, the GREEN LED will be solid, and the display will

show ANALYZING BATTERY while the charger determines that the battery is properly connected and the condition of the battery.

10. Monitor the progress of the charge by pressing the display button on the front of the unit. When the battery is fully charged, the GREEN LED will pulse.

11. When charging is complete, disconnect the charger from the AC power, remove the clamp from the vehicle’s chassis, and then remove the clamp from the battery terminal.

CHARGING A BATTERY OUTSIDE OF THE VEHICLE1. Place battery in a well-ventilated area.2. Clean the battery terminals.3. Connect the battery, following the precautions listed in sections 6 and 7.4. Connect the charger to the electrical outlet.5. Select the battery type.6. When the charger starts, the GREEN LED will be solid, and the display will

show ANALYZING BATTERY while the charger determines if the battery is properly connected and the condition of the battery.

7. Monitor the progress of the charge by pressing the display button on the front of the unit. When the battery is fully charged, the GREEN LED will pulse.

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8. When charging is complete, disconnect the charger from the AC power, disconnect the negative clamp, and finally the positive clamp.

9. A marine (boat) battery must be removed and charged on shore.USING THE QUICK-CONNECT CABLE CONNECTORSConnect any of the three output cable assemblies to the charger in seconds. IMPORTANT: Never connect the clamp and ring terminal connectors together for use in other applications, such as external battery or other power source charging, or to extend the output cable length, as reverse polarity and/or overcharge conditions will occur.BATTERY CLAMP QUICK-CONNECT1. Connect the end of the charger output cable to the end of the battery clamp

quick-connect. 2. Follow the steps in previous sections to connect the output clamps to the battery. 3. After a good electrical connection is made to the battery, plug the power cord

into a grounded 120V AC electrical wall outlet. 4. When charging is complete, disconnect the AC cord from the outlet, remove

the negative clamp, and finally the positive clamp.RING TERMINAL QUICK-CONNECTThe ring connectors permanently attach to the battery, providing easy access to quickly connect the charger to your battery. This application is appropriate for motorcycles, lawn tractors, ATVs and snowmobiles. 1. To permanently attach to a battery, loosen and remove each nut from the bolt

at the battery terminals. 2. Connect the red POSITIVE connector ring to the POSITIVE battery terminal. 3. Connect the black NEGATIVE connector ring to the NEGATIVE battery terminal. 4. Replace and tighten the nuts to secure. 5. Connect the cable to the end of the charger output cord.

Take care to keep the wires and plug away from metal and moving parts. 6. Plug the charger power cord into a grounded 120V AC electrical wall outlet.7. Select the battery type.8. When charging is complete, disconnect the AC cord from the outlet, and then

disconnect the quick-connect cable from the charger output cord.12V ACCESSORY PLUG QUICK-CONNECTCharge or maintain your battery without lifting the hood. 1. Connect the end of the 12V accessory plug quick-connect to the charger.2. Insert the 12V accessory plug into the 12V accessory outlet.3. Route the power cord from the charger through the vehicle’s open window.

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4. Plug the charger power cord into a grounded 120V AC electrical wall outlet. 5. If the vehicle’s ignition key has to be on in order for the accessory outlet to

supply/receive power, turn the key, without starting the engine.6. Select the battery type.7. When charging is complete, disconnect the AC cord from the outlet, and then

remove the 12V accessory plug from the 12V outlet.BATTERY CHARGING TIMESCCA = Cold Cranking Amps RC = Reserve Capacity Ah = Amp Hour

BATTERY SIZE/RATING CHARGE TIME (6A)SMALL BATTERIES

Motorcycle, garden tractor, etc.6-12 Ah ¾-1¼ h12-32 Ah 1¼-3¼ h

CARS AND TRUCKS

200-315 CCA 40-60 RC 3¼-4¾ h315-550 CCA 60-85 RC 4¾-6 h

550-1000 CCA 85-190 RC 6-11½ h

MARINE/DEEP-CYCLE80 RC 6 h140 RC 9 h160 RC 10 h180 RC 11 h

Times are based on a 50% discharged battery and may change, depending on age and condition of battery.AUTOMATIC CHARGING MODEWhen an automatic charge is performed, the charger switches to the maintain mode automatically after the battery is charged. BATTERY CONNECTION INDICATORIf the charger does not detect a properly connected battery, charging will not start and the digital display will show one of two messages. If the display shows CONNECT CLAMPS, make sure the charger is connected to the battery and the connection points are clean and making a good connection. If the display shows WARNING CLAMPS REVERSED, unplug the charger from the AC outlet, reverse the connections at the battery, and then plug the charger back in.CHARGE COMPLETION AND MAINTAIN MODE (FLOAT MODE MONITORING)Charge completion is indicated by the GREEN LED pulsing and the digital display showing FULLY CHARGED AUTO MAINTAINING. This means that the charger has stopped charging and has switched to the Maintain Mode of operation. NOTE: If the charger has to provide its maximum maintain current for a continuous 12 hour period, it will go into Abort Mode (see Aborted Charge section). This is usually caused by a drain on the battery, or the battery could be bad. Make sure there are no loads on the battery. If there are, remove them. If there are none, have the battery checked or replaced.

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MAINTAINING A BATTERYThis unit maintains 12 volt batteries, keeping them at full charge. It can charge small batteries and maintain both small and large batteries. If you are maintaining a fully charged large battery, you are properly utilizing the battery charger. However, if you use this battery charger to charge a large battery, such as a marine deep-cycle battery, that was not fully charged, you may lose some of the battery’s capacity. Therefore, we do not recommend charging a large battery with this unit.NOTE: The maintain mode technology allows you to safely charge and maintain a healthy battery for extended periods of time. However, problems with the battery, electrical problems in the vehicle, improper connections or other unanticipated conditions could cause excessive current draws. As such, occasionally monitoring your battery and the charging process is required.ABORTED CHARGEIf charging cannot be completed normally, charging will abort. When charging aborts, the charger’s output is shut off, the GREEN LED will flash, and the display will show CHARGE ABORTED-BAD BATTERY. To reset after an aborted charge, unplug the charger from the outlet, wait a few moments and plug it back in.FAN: Your charger is equipped with a fan. It is normal for the fan to run while the charger is charging. Keep the area near the charger free of obstructions, to allow the fan to operate efficiently.

13. DISPLAY MESSAGESSELECT BATTERY TYPE (No LED lit) – Waiting for user to select battery type. The charger will remember the battery type selected. LITHIUM ION BATTERY-PRESS AGAIN FOR LEAD-ACID (No LED lit) –Charging will begin for lithium-ion battery type. Press again to change to lead-acid battery type.LEAD-ACID BATTERY-PRESS AGAIN FOR LITHIUM ION (No LED lit) –Charging will begin for lead-acid battery type. Press again to change to lithium-ion battery type.CONNECT CLAMPS TO LITHIUM ION BATTERY (No LED lit) – Plugged into the ACoutlet, and lithium-ion battery type is selected, without the clamps connected to a battery.CONNECT CLAMPS TO LEAD ACID BATTERY (No LED lit) – Plugged into the ACoutlet, and lead-acid battery type is selected, without the clamps connected to a battery.WARNING CLAMPS REVERSED (No LED lit) – Plugged into the AC outlet and the clamps are connected backwards to a battery.ANALYZING LEAD-ACID BATTERY (or) ANALYZING LEAD-ACID BATTERY (Green LED lit) – Plugged into the AC outlet, and when first connected correctly to a battery.CHARGING 12V – xx% (Green LED lit) – Plugged into the AC outlet and correctly connected to a discharged 12V battery.

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FULLY CHARGED AUTO MAINTAINING (Green LED pulsing) – Plugged into the AC outlet and correctly connected to a fully charged battery.CHARGE ABORTED-BAD BATTERY (Green LED flashing) – Circumstances that could cause an Abort situation during charging: • The battery is severely sulfated or has a shorted cell and can’t reach a full charge.• The battery is too large or there is a bank of batteries and it doesn’t reach full

charge within a set time period.Circumstances that could cause an Abort situation during maintain: • The battery is severely sulfated or has a weak cell and will not hold a charge.• There is a large draw on the battery and the charger has to supply its maximum

maintain current for a 12 hour period to keep the battery at full charge.BATTERY DISCONNECTED (No LED lit) – After charging has begun, the charger has lost its connection to the battery.

14. MAINTENANCE AND CAREA minimal amount of care can keep your battery charger working properly for years.• Clean the clamps each time you are finished charging. Wipe off any battery fluid

that may have come in contact with the clamps, to prevent corrosion.• Occasionally cleaning the case of the charger with a soft cloth will keep the finish

shiny and help prevent corrosion.• Coil the input and output cords neatly when storing the charger. This will help

prevent accidental damage to the cords and charger.• Store the charger unplugged from the AC power outlet in an upright position. • Store inside, in a cool, dry place. Do not store the clamps clipped together, on or

around metal, or clipped to the cables.15. TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE REASON/SOLUTIONBattery clamps do not spark when touched together.

The charger is equipped with an auto-start feature. It will not supply current to the battery clamps until a battery is properly connected. The clamps will not spark if touched together.

No problem; this is a normal condition.

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PROBLEM POSSIBLE CAUSE REASON/SOLUTIONThe charger will not turn on when properly connected.

AC outlet is dead.

Poor electrical connection.

Check for open fuse or circuit breaker supplying AC outlet.

Check power cord and extension cord for loose fitting plug.

Green LED is solid and the display shows ANALYZING BATTERY.

The charger needs to check the condition of the battery.

The Green LED will be solid when the charger is checking the condition of the battery. This is normal.

Green LED is flashing and the display shows CHARGE ABORTED-BAD BATTERY.

The battery is sulfated.

The battery is too large for the charger.

The battery voltage is still below 10V after 2 hours of charging.

Reset the charger by briefly unplugging it.

You need a charger with a higher amp rate.

Have the battery checked.

The display shows CONNECT CLAMPS.

The clamps are not making a good connection.

The fuse is bad.

Check for poor connection at battery and frame.

Replace the in-line fuse for the ring connector.

16. SPECIFICATIONSInput Voltage ..................................................................120V AC @ 60Hz, 1.5AOutput Voltage ........................................................................................12V DCOutput Current Rating .........................................................................6A @ 12V

17. REPLACEMENT PARTSBattery clamps (quick-connect) ....................................................... 389900343112V accessory plug (quick-connect) ............................................... 3899003432Ring connectors (quick-connect) .................................................... 3899003433